Method of constructing fire-brick arches.



F. J. JEWELL.

METHOD OF CONSTRUCTING FIRE BRI-CK ARCHES.

APPLICATION FILED M [7. ms.

1,288,Q15m Patented Dec. 17, 1918.

llldl lblllji FRANK JUDSON OF HOME, KEV] YORK, A3SIGNOR TO FRANK JUIDSONJEYVELL AND NELSLN ADAEZE, BOTH OF ROME, NEW YGRK, TRADING UNDER THEFIRN- NAME OF BETSON ELASTIC FIRE BRICK 5J0.

I/IETHGD 0F CONSTRUCTING FIRE-BRICK ARCHES.

Application filed October 17, 191%.

1' all It'lllHJ'L it may concern i3e it known that l, FRANK JUDSONJIRVELL. a citizen of the lfnitcd ltates of America. and resident otRome, in the county of Oneida and State of New York, have invented acertain new and useful linprovenient in Methods of Constructing FireBrick Arches, of which the following, is a true and exact description,reference. being had to the accompanying drawings, which form a parthereof.

My invention relates to the building lip-of fire brick arches in boilersettings and has for its object to provide a method whereby one piecefire brick arches in such boiler settings can be readily and safelyconstructed.

Broadly speaking, my new method consists in building up in the spacebeneath that occupied by the arch to be formed a knockdown false Workstructure of metal bars or pipes supporting a thin metal sheet havingthe arched form desired for the bottom of the arch to be formed,compacting upon said arched plate a mass of unburned plastic fire brickmaterial into the form of the desired arch and then subjecting the falsework and the arch formed upon it to heat --unn1 the tire brick materialis converted into fire brick. and finally removing the false Work andthin iron plate supporting the arch.

Reference being had to the drawings which illustrate my invention and inv.'hich Figure 1 is a front elevation showing the false work in placebetween the side-Walls of the setting and the arch of plastic the brickmaterial formed upon it. 1

Fig. 2 is a plan view of the false work, and

Fig. 3 is a detailed View showing a preferred mode of attaching the barsof the false work together.

A A indicates the side walls of the boiler setting, B B, etc, indicateaseries of ii ht iron bars or pipes, preferably pipes, whichSpecification oz" fhctters Patent.

Serial No. 258,663.

are given an arched torn) corresponding to that of the arch to be formedand are supported in place in any convenient way as shown by pipeextensions or legs indicated at l3" B. C (1 etc, are transversel lyinglight bars or pipes supported on the arched pipes B and preferablysecured thereto by wires as indicated at i), Fig. 3. C is a light metalplate of sheet iron or fairly heavy tin, which is supported on the bars(J and conform to the curvature of the bars 13 and of the arch to beformed upon it. F, Fig. 1, indicates the arch which 1 formed bi unburnedand plastic fire brick material. while compacted together, and into theform desired.

The false Work being built up and the arch l of plastic material beingformed upon the plate E, as described, heat is applied tor the purposeof burning the fire brick material into fire brick. The heat is readilytransmitted through the light frame Work of the false work and the thinplate supporting the arch, and, 01" course, should be regulated in themanner well known for the proper burning of fire brick. After the archis suliiciently burned the false Work and thin plate upon Which it isbuilt. can be readily remove-d.

llaving n nv described my invention, What I claim as neiva'ndjdesire tosecure by Lettcrs Patent, is:

The method-of constructing a one piece fire brick arch, which consistsin building a knockdown false Work structure of metal bars or pipessupporting a thin metal sheet having the arched form desired for thebottom of the arch, compacting a mass of unburned plastic fire brickmaterial on said arched plate in the form of the desired arch, heatingthe false work and the arch formed upon it until th'i'efire brickmaterial is converted into fire brick andthen removing-the tats-5a"truth.

' titanic Jonson JEWELL.

